This will load the support kernel module for VirtualBox. You should addsimilar "stop" lines to your rc.local_shutdown.

By default you have to create a vboxusers group, for example with groupadd -g 215 vboxusersand make your user a member of that group.Alternatively, you can run the script with VBOXUSERS=no to allow allusers of your system to start virtual machines.

By default VirtualBox will be compiled with hardening enabled. Thatmeans all binaries will be run suid root, which is the defaultbehaviour of upstream packages. However, you are still ableto disable this by passing HARDENING=no to the script.When hardening is enabled, VBOXUSERS is automatically set to yes.

If the VirtualBox Additions ISO is available in the same directoryas the build script, it will be included in the package and placedunder /usr/share/virtualbox/. Same goes for the UserManualThey can be downloaded from: http://download.virtualbox.org/virtualbox/2.1.4/VBoxGuestAdditions_2.1.4.iso http://download.virtualbox.org/virtualbox/2.1.4/UserManual.pdf

Since 2.0.0 there is a Qt4 GUI, which is enabled by default. To disable it passQT4=no to the script. An older, no longer maintained Qt3 GUI is also availablebut disabled by default (no new features have been added to this since 2.0).To enable it, pass QT3=yes to the script.Beware: the Qt3 GUI has already been removed from svn trunk, and 2.2.0 willonly have a Qt4 GUI available.

For pulseaudio support, pass PULSE=yes to the build script. This requirespulseaudio to be installed.

This requires acpica, and the virtualbox-kernel package is needed at runtime.